20802688

素因数分解:

$2^7\times {\mathrm{331}}^1\times {\mathrm{491}}^1$

素因数の和:836

約数の個数: 32

約数和(自身を含む): 41652720

約数和(自身を除く): 20850032

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 331, 491, 662, 982, 1324, 1964, 2648, 3928, 5296, 7856, 10592, 15712, 21184, 31424, 42368, 62848, 162521, 325042, 650084, 1300168, 2600336, 5200672, 10401344, 20802688]

約数ペア:

[(1, 20802688), (2, 10401344), (4, 5200672), (8, 2600336), (16, 1300168), (32, 650084), (64, 325042), (128, 162521), (331, 62848), (491, 42368), (662, 31424), (982, 21184), (1324, 15712), (1964, 10592), (2648, 7856), (3928, 5296)]